Cook will captain a much-changed England side in the series opener in Hamilton on Sunday while the Black Caps side will be largely made up from the same players.

But despite the change of format and personnel, the England skipper says the 10-wicket win at Wellington will give the tourists great confidence.

"Clearly any win against pretty much the same opposition you're going to be playing is helpful," he said.

"It's obviously a different format, so not that relevant. But it's great for the guys' confidence."

Alex Hales and Michael Lumb were the chief architects of the crushing win in Hamilton that clinched a 2-1 series victory but they are not part of the 50-overs squad.

Instead, England will welcome back the likes of Ian Bell, Jonathan Trott, Graeme Swann and Jimmy Anderson and despite the fact some of those players have not played for two months, Cook is confident they will be up to the task.

"It's great to have those guys coming back," he said. "In one way, they're a little bit undercooked - because the last time they played a game for England was 10 days before Christmas.

"Belly and I played a couple of weeks ago, so the other guys are probably a little bit underdone. They've had a bit of time off - which they needed.

"They haven't had a game to practise here. But they're world-class players who've played here before. So it shouldn't be too much of a problem ... and I expect them to be able to adapt well."

Cook also confirmed that Jos Buttler will continue as wicketkeeper after getting the nod ahead of Jonny Bairstow in the 20-over format.

"It's quite clear Jos has done really well - in those two one-day games he played in India and those Twenty20s, he's been fantastic," said Cook.

"So he'll be getting the first go tomorrow. He deserves his chance to take it on, and I've been very impressed with the way he's handled himself."